<SUBMISSION>
<ACCESSION-NUMBER>0000857005-08-000020
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20080425
<FILING-DATE>20080428
<DATE-OF-FILING-DATE-CHANGE>20080428
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>PARAMETRIC TECHNOLOGY CORP
<CIK>0000857005
<ASSIGNED-SIC>7372
<IRS-NUMBER>042866152
<STATE-OF-INCORPORATION>MA
<FISCAL-YEAR-END>0930
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>140 KENDRICK STREET
<CITY>NEEDHAM
<STATE>MA
<ZIP>02494
<PHONE>7813705000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>140 KENDRICK STREET
<CITY>NEEDHAM
<STATE>MA
<ZIP>02494
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>COHEN BARRY F
<CIK>0001185279
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-18059
<FILM-NUMBER>08779617
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>C/O PARAMETRIC TECHNOLOGY CORP
<STREET2>140 KENDRICK STREET
<CITY>NEEDHAM
<STATE>MA
<ZIP>02494
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>C/O PARAMETRIC TECHNOLOGY CORP
<STREET2>140 KENDRICK STREET
<CITY>NEEDHAM
<STATE>MA
<ZIP>02404
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>cohen042508_ex.xml
<TEXT>
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    <ownerSignature>
        <signatureName>Catherine Gorecki by power of attorney filed 11/2/2007</signatureName>
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</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
